As you might know that the 2014 r4i gold pro flashcart kernel has been updated to the V3.4b recnently . With the newest kernel , it can suppor more functions and play games more smoothly. This card comes with many striking features,such as support RTS, RTG ,cheat function and so on.It is worthwhile to buy one .Here is the official one : 2014 r4i gold pro flashcart
Here is the tutorial about how to use this flashcart real time save function to backup games .
Step 1. Download the latest firmware v3.4b
Step 2 After download , Extract it

Step 3 open the folder , copy all of them on the root of the micro sd card

Step 7.Make sure the RTS is On(as picture shows) then click save . then Click B back to the game list and choose the game to play.
Step 8. after the game loads. just press soft reset hotkeys to boot up the rts menu “L+R+A+B”